I can't see a square or a D given with your question.
But to find the perimeter you just have to add the surface of every side of the square.
Answer:
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shapes
Step-by-step explanation:
The patterns are shapes
x+y,=3
x_y=-3
A.,(0,3)
B. (0,3)
C. (0,6)
D. (0 _3)